Thieves made off with 18th-century jewels worth 113 million euros.
In Germany, a court on Tuesday sentenced five members of a criminal group to prison for the 2019 robbery of the Green Vault museum in Dresden.
The longest sentence is more than six years. Two of the defendants have already been sentenced to prison for another museum robbery.
The four accused had confessed to their crime earlier this year.
The fifth confessed to stealing the tools used to enter the building, but denied involvement in the robbery itself.
The sixth accused was acquitted. He said that he was in a hospital in Berlin at the time of the robbery.
Thieves made off with 18th-century jewels worth 113 million euros. German media have described the robbery as the biggest art theft in modern history.
Only a part of the loot has been recovered. Many items have been badly damaged.
About 40 suspects involved in the robbery plan are still being sought.
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